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Preparation and Standardization of Hydrochloric Acid Solution.

Hydrochloric Acid (C.P. Grade) A nhydrous Sodium Carbonate M ethyl Or ange.

Standardization of Hydrochloric Acid Solution:. Weigh accurately 0.4 to 0.5 g of Anhydrous S odium C arbonate in a tared Erlenmeyer flask. Dissolve the sodium carbonate in 80 mL of distilled water and shake until the solution is complete. Add 2 drops of methyl orange. Titrate with a Hydrochloric Acid solution to a salmon color endpoint. Determine the normality and molarity of Hydrochloric acid solution..

EXPERIMENT DATA:. Experiment Dat a :. Preparation of Hydrochloric acid solution: We poured 40 ml of distilled water into a 500 ml beaker. We added 8.4 ml of C.P. Hydrochloric Acid slowly and gradually stirred it after each addition. We added enough distilled water to complete the 500 ml volume. We poured the Hydrochloric solution into a 750 ml stock bottle and labeled it. Standardization of Hydrochloric Acid: We weigh 0.45 of Anhydrous S odium C arbonate in a tared Erlenmeyer flask. We dissolved the Sodium C arbonate in 80 mL of distilled water and shaken until the solution is complete. We added 2 drops of Methyl O range We performed titration with 36.6 mL Hydrochloric A cid S olution to achieve salmon color endpoint..

Eq NamCO& 40b. qq : Y2.qq glmol - O.4bg Volume HCI coodumtd - = O. N no- OF equiva\enE aule / N (Yafnc co\uu / eq. - VON. Co\UECOYI N: 0-450 1 bL.oag o. C&LOq-cq. Liber «o\uYc / volume Jo\u 0-4b g I.